EN ISO 8501-2:2001
(Main)Preparation of steel substrates before application of paints and related products - Visual assessment of surface cleanliness - Part 2: preparation grades of previously coated steel substrates after localized removal of previous coatings (ISO 8501-2:1994)
Preparation of steel substrates before application of paints and related products - Visual assessment of surface cleanliness - Part 2: preparation grades of previously coated steel substrates after localized removal of previous coatings (ISO 8501-2:1994)
Specifies a series of preparation grades for steel surfaces after localized removal of previous paint coatings. Contains photographs showing examples of preparation grades. The various preparation grades are defined by written descriptions. Applicable to surfaces prepared for painting by methods such as blast-cleaning, hand- and power-tool cleaning, and machine abrading.
Vorbereitung von Stahloberflächen vor dem Auftragen von Beschichtungsstoffen - Visuelle Betrachtung der Oberflächenreinheit - Teil 2: Oberflächenvorbereitungsgrade von beschichteten Oberflächen nach örtlichem Entfernen der vorhandenen Beschichtung (ISO 8501-2:1994)
Préparation des subjectiles d'acier avant application de peintures et de produits assimilés - Evaluation visuelle de la propreté d'un subjectile - Partie 2: Degrés de préparation des subjectiles d'acier précédement revêtus aprés décapage localisé des couches (ISO 8501-2:1994)
Priprava jeklenih podlag pred nanašanjem barv in sorodnih pripravkov - Vizualno ocenjevanje čistosti površine - 2. del: Stopnje priprave predhodno zaščitenih jeklenih podlag po lokalni odstranitvi starih premazov (ISO 8501-2:1994)
General Information
- Status
- Published
- Publication Date
- 07-Aug-2001
- Technical Committee
- CEN/TC 139 - Paints and varnishes
- Drafting Committee
- CEN/TC 139 - Paints and varnishes
- Current Stage
- 9093 - Decision to confirm - Review Enquiry
- Start Date
- 15-Sep-2006
- Completion Date
- 15-Sep-2006
Relations
- Effective Date
- 28-Jan-2026
- Effective Date
- 28-Jan-2026
- Effective Date
- 28-Jan-2026
Overview
EN ISO 8501-2:2001 (ISO 8501-2:1994 adopted by CEN) defines the visual assessment of surface cleanliness for steel substrates after localized removal of previous coatings. The standard specifies a series of preparation grades with accompanying photographs and written descriptions to help inspectors and applicators assess the condition of previously coated steel before repainting or repair. It applies to surfaces prepared by methods such as blast‑cleaning, hand‑ and power‑tool cleaning, and machine abrading.
Key topics and requirements
- Preparation grades for previously coated steel: A set of visually defined grades that describe the acceptable appearance of steel where coatings have been locally removed.
- Photographic examples: Photographs illustrating typical conditions for each preparation grade to promote consistent visual assessment.
- Written descriptions: Text definitions that accompany images to clarify what constitutes each grade.
- Applicable surface‑preparation methods: Guidance intended for surfaces prepared by blast‑cleaning, hand‑ and power‑tool cleaning, and machine abrading.
- Scope limitation: Focuses on localized removal of coatings (touch‑up, repair areas) rather than overall stripping of coatings from an entire structure.
- Consistency in inspection: Provides a common visual language and reference to reduce subjectivity in acceptance criteria for repair and maintenance painting.
Practical applications
- Pre‑paint inspection and acceptance of repair and touch‑up areas on steelwork
- Maintenance planning for industrial plants, bridges, marine vessels, and structural steel
- Quality control for contractors performing localized coating removal and repainting
- Determining whether surface preparation meets the visual criteria before primer or finish coat application
- Training and certification materials for coating inspectors to standardize assessments
Who uses this standard
- Coating inspectors and quality assurance personnel
- Contractors and applicators performing surface preparation and repair painting
- Asset owners and maintenance engineers specifying acceptance criteria for repairs
- Architects and specifiers referencing surface‑preparation requirements in project documents
Related standards
- EN ISO 8501-1 - Visual assessment: rust grades and preparation grades for uncoated steel and overall removal of coatings
- Normative references listed in EN ISO 8501-2 include: ISO 2409, ISO 4624, ISO 4628-6 (consult the standard’s annex ZA for full list)
EN ISO 8501-2 is a practical tool for achieving consistent, repeatable visual evaluation of locally prepared steel surfaces prior to repainting, improving communication between inspectors, contractors, and clients. Keywords: EN ISO 8501-2, ISO 8501-2, preparation grades, visual assessment, surface cleanliness, steel substrates, localized removal, surface preparation.
EN ISO 8501-2:2002 - Zaradi posebne vsebine (fotografije in vzorčni primeri), se mednarodni del standarda dobavi v tiskani obliki. Predvideni rok dobave je 7 delovnih dni. Za več informacij nam pišite (prodaja@sist.si) ali pokličite (014783061).
Frequently Asked Questions
EN ISO 8501-2:2001 is a standard published by the European Committee for Standardization (CEN). Its full title is "Preparation of steel substrates before application of paints and related products - Visual assessment of surface cleanliness - Part 2: preparation grades of previously coated steel substrates after localized removal of previous coatings (ISO 8501-2:1994)". This standard covers: Specifies a series of preparation grades for steel surfaces after localized removal of previous paint coatings. Contains photographs showing examples of preparation grades. The various preparation grades are defined by written descriptions. Applicable to surfaces prepared for painting by methods such as blast-cleaning, hand- and power-tool cleaning, and machine abrading.
Specifies a series of preparation grades for steel surfaces after localized removal of previous paint coatings. Contains photographs showing examples of preparation grades. The various preparation grades are defined by written descriptions. Applicable to surfaces prepared for painting by methods such as blast-cleaning, hand- and power-tool cleaning, and machine abrading.
EN ISO 8501-2:2001 is classified under the following ICS (International Classification for Standards) categories: 87.020 - Paint coating processes. The ICS classification helps identify the subject area and facilitates finding related standards.
EN ISO 8501-2:2001 has the following relationships with other standards: It is inter standard links to EN 1090-2:2008+A1:2011, EN 1090-2:2018+A1:2024, EN 1090-2:2018. Understanding these relationships helps ensure you are using the most current and applicable version of the standard.
EN ISO 8501-2:2001 is available in PDF format for immediate download after purchase. The document can be added to your cart and obtained through the secure checkout process. Digital delivery ensures instant access to the complete standard document.
Standards Content (Sample)
EUROPEAN STANDARD
EN ISO 8501-2
NORME EUROPÉENNE
EUROPÄISCHE NORM
August 2001
ICS 87.020
English version
Preparation of steel substrates before application of paints and
related products - Visual assessment of surface cleanliness -
Part 2: preparation grades of previously coated steel substrates
after localized removal of previous coatings (ISO 8501-2:1994)
Préparation des subjectiles d'acier avant application de Vorbereitung von Stahloberflächen vor dem Auftragen von
peintures et de produits assimilés - Evaluation visuelle de Beschichtungsstoffen - Visuelle Betrachtung der
la propreté d'un subjectile - Partie 2: Degrés de préparation Oberflächenreinheit - Teil 2:
des subjectiles d'acier précédement revêtus aprés Oberflächenvorbereitungsgrade von beschichteten
décapage localisé des couches (ISO 8501-2:1994) Oberflächen nach örtlichem Entfernen der vorhandenen
Beschichtung (ISO 8501-2:1994)
This European Standard was approved by CEN on 8 July 2001.
CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European
Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such national
standards may be obtained on application to the Management Centre or to any CEN member.
This European Standard exists in three official versions (English, French, German). A version in any other language made by translation
under the responsibility of a CEN member into its own language and notified to the Management Centre has the same status as the official
versions.
CEN members are the national standards bodies of Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece,
Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
Management Centre: rue de Stassart, 36 B-1050 Brussels
© 2001 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 8501-2:2001 E
worldwide for CEN national Members.
CORRECTED 2001-12-12
Foreword
The text of the International Standard from Technical Committee ISO/TC 35 "Paints and
varnishes" of the International Organization for Standardization (ISO) has been taken over as
an European Standard by Technical Committee CEN/TC 139
...
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